<div class="panel panel-default">
    <div class="panel-heading">栏目</div>
    <div class="list-group">
        {nav  }
        <a href="{$vdata['url']}" class="list-group-item{if $current} active{/if}">{$vdata['catname']}</a>
        {/nav}
    </div>
</div>
